Background Noise

A television show / movie you’ve seen enough times that you know the plot by heart and it no longer requires active attention to follow, so you watch it while you’re completing other quiet activities, to fill the room with some kind of noise.

Friend: Hey, I thought we were going to study, why is Friends/Seinfield/The Office/Parks and Rec on?
You: I’m not watching it, it’s just background noise, let’s study!